AR7110/AR7110R User Guide AR7110/AR7110R Bedienungsanleitung AR7110/AR7110R Guide de l utilisateur AR7110/AR7110R Guida per l utente

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1 EN AR7110/AR7110R User Guide AR7110/AR7110R Bedienungsanleitung AR7110/AR7110R Guide de l utilisateur AR7110/AR7110R Guida per l utente 1

2 EN NOTICE All instructions, warranties and other collateral documents are subject to change at the sole discretion of Horizon Hobby, Inc. For up-to-date product literature, visit horizonhobby.com and click on the support tab for this product. Meaning of Special Language The following terms are used throughout the product literature to indicate various levels of potential harm when operating this product: NOTICE: Procedures, which if not properly followed, create a possibility of physical property damage AND a little or no possibility of injury. CAUTION: Procedures, which if not properly followed, create the probability of physical property damage AND a possibility of serious injury. WARNING: Procedures, which if not properly followed, create the probability of property damage, collateral damage, and serious injury OR create a high probability of superficial injury. WARNING: Read the ENTIRE instruction manual to become familiar with the features of the product before operating. Failure to operate the product correctly can result in damage to the product, personal property and cause serious injury. This is a sophisticated hobby product. It must be operated with caution and common sense and requires some basic mechanical ability. Failure to operate this Product in a safe and responsible manner could result in injury or damage to the product or other property. This product is not intended for use by children without direct adult supervision. Do not attempt disassembly, use with incompatible components or augment product in any way without the approval of Horizon Hobby, Inc. This manual contains instructions for safety, operation and maintenance. It is essential to read and follow all the instructions and warnings in the manual, prior to assembly, setup or use, in order to operate correctly and avoid damage or serious injury. WARNING AGAINST COUNTERFEIT PRODUCTS Thank you for purchasing a genuine Spektrum product. Always purchase from a Horizon Hobby, Inc. authorized dealer to ensure authentic high-quality Spektrum product. Horizon Hobby, Inc. disclaims all support and warranty with regards, but not limited to, compatibility and performance of counterfeit products or products claiming compatibility with DSM or Spektrum technology. Age Recommendation: Not for children under 14 years. This is not a toy. NOTICE: This product is only intended for use with unmanned, hobby-grade, remote-controlled vehicles and aircraft. Horizon Hobby disclaims all liability outside of the intended purpose and will not provide warranty service related thereto. WARRANTY REGISTRATION Visit today to register your product. 2

3 DSMX EN Spektrum launched the 2.4GHz RC revolution with its DSM2 technology. Since then, millions of hobbyists the world over have come to embrace 2.4 as the way to fly. Spektrum leads the way yet again with DSMX the world s first wideband, frequency-agile 2.4GHz signal protocol. How Does DSMX Work? It s a crowded 2.4GHz world out there and every 2.4GHz system faces the same challenges. DSMX better equips you for these challenges by combining the superior data capacity and interference resistance of a wideband signal (like that used in DSM2) with the agility of frequency shifts. Compared to the wideband signal of DSMX, the narrow band signal of other frequency hopping 2.4 transmitters is more likely to suffer data loss in the event of on-channel interference. Think of it as a river vs. a stream. It takes more interference to dam a river than it does a stream. As more and more 2.4 transmitters vie for the same number of available channels, there is more interference and more of a risk for data loss. By adding the agility of frequency shifts to the superior interference resistance of a wideband signal, DSMX is far less likely to suffer significant data loss from on-channel interference. The result is quicker connection times and superior response in even the most crowded 2.4GHz environment. DSMX Operational Differences DSMX transmitters and receivers function nearly identically to Spektrum DSM2 systems. Binding, setting the failsafe, recording flight log data, as well as general use of the system is no different than using any current Spektrum system. Following are the operational differences: Brownout Detection - Not Available on DSMX Receivers DSM2 receivers feature Brownout Detection that flashes the receiver s LED if a power interruption occurs. While DSMX receivers have QuickConnect technology and recover instantly from a power interruption, the architecture of DSMX prevents Brownout Detection when operating in DSMX mode. Flight Log Recording-Fades Higher than DSM2 Note that DSMX hops through the band while DSM2 finds two quiet channels and remains on those channels. Consequently because DSMX operates on quiet and noisy channels, it s common to have more Antenna Fades than when using DSM2, when used in busy 2.4GHz environments. When taking flight log data readings, the Frames and Hold Data are important and should be used a reference while Fades are insignificant due to the nature of frequency hopping. A 10-minute flight will typically result in less than 50 Frame Losses and no Holds. Just How Good is DSMX? In multiple tests, 100 DSMX systems were operated simultaneously for extended periods of time. During these tests each of the 100 systems was monitored in flight and on the ground. In every test not a single case of RF link loss, latency increase or control degradation was experienced or recorded. 3

4 EN Is DSMX Compatible with DSM2? Yes. DSMX is fully compatible with all DSM2 hardware. In fact, many pilots may find the DSM2 equipment they have now is all they will ever need. Even if a new DSMX transmitter eventually comes along that they really want, all the DSM2 receivers they have now will work with it. It is important to note, however, that while DSMX is compatible with DSM2, the only way to experience the full benefits of DSMX in a busy 2.4 environment is by pairing a DSMX transmitter with a DSMX receiver. Are DSM2 Transmitters Eligible for a DSMX Add-on? Yes. DX8 owners can simply download Spektrum AirWare software from spektrumrc.com and update the firmware using their SD card. All DSM2 transmitters, except the DX5e, are eligible for the add-on by going to for details. DSM2 receivers and transmitter modules are not eligible for the DSMX add-on. Does DSMX have ModelMatch and ServoSync? Yes. DSMX will provide you with these and other exclusive Spektrum advantages you already enjoy with DSM2. Want to know more about DSMX? Visit spektrumrc. com for complete details on this as well as the many other reasons Spektrum is the leader in 2.4. Note: DSMX receivers are not compatible with DSM2 remote receivers and DSM2 receivers are not compatible with DSMX remote receivers. DSMX transmitters are compatible with all DSM2 and DSMX receivers and will operate in the mode noted below. DSM2 transmitters are compatible with all DSM2 and DSMX receivers and will operate in the mode noted below. DSMX technology is active only when both transmitter and receiver are DSMX enabled. Note 1: DSMX upgraded DX5e and DX6i transmitters are compatible with all DSMX receivers except the high-speed DSM2 receivers (like the AR7600, AR9000, etc.). When using a high-speed DSM2 receiver with the DX5e or DX6i, it s necessary to manually put these transmitters into DSM2 mode. See the Spektrum website for details on DX5e/DX6i DSM2 mode for details. 4

5 Transmitter-Receiver Compatibility EN DSMX Transmitter DSM2 DX5e DX6i DX7 DX7SE DX8 DX10t Modules DX5e DX6i DX7 DX7SE DX8 DX10t DSM2 DSMX Set Tx to DSM2 only **note 1 DSM2 DSM2 AR500 AR600 AR6100 AR6110/e AR6200 AR6255 AR6300 AR6400/ALL AR7000 AR7100/R AR7600 AR8000 AR9000 AR9100 AR9200 AR9300 AR12000 AR12110 AR600 AR6115/e AR6210 AR6255 AR7010 AR7110/R AR7610 AR8000 AR9010 AR9110 AR9210 AR9310 AR10000 AR12010 AR12110 DSM2 DSMX Receiver 5

6 EN AR7110/AR7110R User Guide Spektrum AR7110 series receivers offer the ultimate system for high-performance nitro or 500-class and larger electric helicopters. Combining the bullet proof radio link of Spektrum DSM2 technology with a built-in regulator for the Rudder, Aux2, Gear and Throttle channels and an integrated RevLimit limiter (AR7110R only), the AR7110 series receivers make installation of these normally complex devices clean and simple. The AR7110 features a Fail-On soft switch to ensure reliability and heavy 16AWG low resistance input power leads for uninterrupted power even under the most demanding high-current draw applications. The newly developed backplate rpm sensor makes this integrated receiver, limiter and regulator system the easiest and neatest possible to install with only one external rpm sensor lead for the limiter. Designed and developed by helicopter experts, the all-in-one integrated design of the AR7110 takes the hassle out of installing and properly setting up separate receivers, regulators and limiters. The AR7110/AR7110R full range 7-channel receiver features DSM technology and is compatible with all Spektrum and JR aircraft radios that support DSM2 and DSMX technology including: JR12X, 11X, X9503, X9303, Spektrum DX8, DX7, DX6i, DX5e and Module Systems. NOTICE: The AR7110/AR7110R receiver is not compatible with the Spektrum DX6 parkflyer transmitter. Features Regulated 5.2-voltage output to the Rudder, Gear, Aux 2 and Throttle channels allowing the cyclic servos to be powered at high voltage for increased performance while the gyro and throttle servos are powered by the necessary compatible lower voltage (5.2V). AR7110R incorporates an integrated RevLimit limiter with backplate rpm sensor offering the cleanest, easiest installation available. Easy-to-mount backplate RevLimit rpm sensor with a single lead that plugs into the receiver, eliminates the hassle of mounting magnets and brackets as is the case for typical rpm sensors. Heavy-duty 16AWG input leads pre-wired with EC3 connector. Dual outputs on the Throttle and Aux 2 channels (regulated to 5.2 volts/ unregulated). One internal receiver and up to two remote receivers. Soft switch fails-on if the switch is damaged. Optional charge ON/OFF adaptor lead (included) allows charging, battery monitoring and ON/OFF through one easily accessible lead. Two types of failsafe SmartSafe (throttle only) and conventional failsafe (all servos). QuickConnect - If a power interruption (brown out) occurs the system reconnects in less than.25 seconds. Flight Log compatible. Compatible with all Spektrum and JR DSM2 full range radio systems Resolution 6

7 EN Note: The AR7110/AR7110R uses a specifically designed switch. Conventionally wired switches are not compatible with the AR7110. Important: The AR7110 and AR7110R require that at least one remote receiver (included) be plugged into port B or R to operate. Applications All sizes of nitro powered helicopters 500-class and larger electric helicopters Specifications: AR7110/AR7110R Type: DSM Full Range receiver Channels: 7 Modulation: DSM2, DSMX Dimensions: 1.86 in x 1.58 in x 0.56 in (47.3mm x 40.2mm x 14.2mm) Weight: 1.1 oz (32.5 g) Voltage range: 6.0 to 10.0 volts/ 5 to 7 cell NiMH or 2-cell LiPo* Minimum receiver operational voltage: 3.5 volts Minimum regulator operational voltage: 5.5 volts Output voltage: Rudder, Aux 2, Throttle 2, Gear 2 = 5.2 volts/ all other channels unregulated (for high voltage compatible servos only) Max regulated channel current: 2 amp continuous Resolution: 2048 Switch: Soft Switch (Switch port can also be used with charge adaptors Connector type: EC3 Remote Receiver Dimensions LxWxH: 1.02 in x 0.80 in x 0.27 in (25.8mm x 20.2mm x 6.8mm) Weight: 0.1 oz (5.0 g) CAUTION: When the battery is connected to the AR7110/AR7110R a low current drain of less than 1mA occurs even when the soft switch is turned off. If the system is going to be stored for any length of time it s important that the battery be disconnected from the AR7110 to prevent overdischarge. Items Included SPMAR7110/SPMAR7110R AR7110/AR7110R Receiver SPM9545 Remote Receiver SPM inch Remote Extension Lead SPM6820 Soft Switch SPM6821 Charge ON/OFF Adaptor Lead SPM6823 Backplate Rpm Sensor (AR7110R only) SPM6803 Bind Plug Instruction Manual 7

8 EN Battery Requirements IMPORTANT: DO NOT use a 4-cell 4.8-volt battery to power the AR7110/ AR7110R. Because of the built-in regulator the AR7110/AR7110R has a minimum recommended operational battery voltage of 5.5 volts and is designed to use 6-volt 5-cell NiMH, 7.2-volts 6-cell NiMH or 7.4-volt 2-cell LiPo batteries. (Higher voltage should be used only if the servos are compatible.) While the AR7110 will continue to operate down to 3.5 volts, the AR7110/ AR7110R features a built-in 5.2-volt regulator for the Rudder, Aux 2, Gear 2, Throttle 2 channels output. A 4-cell 4.8-volt battery will not provide sufficient headroom (voltage margin) to maintain a 5.2 regulated voltage. Regulated outputs are provided to allow the gyro, gyro gain and throttle to be operated at the necessary lower voltage while the cyclic servos (aileron, elevator and pitch) are powered directly by the pack voltage (typically 5-cell 6-volt NiMH or if high voltage compatible servos are used 2-cell 7.4-volt LiPo batteries). Battery Capacity It is important to select a battery that has more than adequate capacity to provide the necessary flight time. Our staff has been recording in-flight data to determine typical current consumption of aircraft in flight. The following graph illustrates a T-REX Nitro 600 during aggressive 3D flight. Helicopter T-REX 600N Servos 3-JR8717 s, G (rudder), (throttle) Batteries mAh 2-cell 7.4-volt LiPo Engine YS50 Flight envelope Aggressive 3D Average current 1.15 amps Peak current 3.33 amps Milliamps used per 8 minute flight 173mAh 8

9 EN In the above example the average current was 1.15 amps, which calculates to 153mAh per 8 minutes (typical flight length). It s recommended that only 60% of the available capacity be used to ensure plenty of reserve battery capacity. In this example using 2000mAh batteries 2000 x 60% = 1200mAh (available usable capacity) divided by the capacity used per 8 minute flight, 153mAh would allow up to 7 flights of 8 minutes each. Recommended Guidelines for Battery Capacity For 50-size electric and glow powered helicopters a minimum capacity of 2000mAh is recommended. For 90-size helicopters a minimum of 3000mAh is recommended. Our staff uses 2000mAh LiPos in 50-size helis and 4000mAh LiPos in 90-size machines and typically flies 4 or 5 flights then recharges. Following is a picture of a typically recommended installation. 9

10 EN Installation Mount the Receiver unit in the position recommended by the helicopter manufacturer. Foam or thick double-sided tape is recommended to isolate the receiver from vibration. Mount the switch and insert the switch plug into the port in the main unit marked SWITCH. Note: The AR7110/AR7110R uses a specifically designed switch. Conventionally wired switches are not compatible with the AR7110. Using the battery capacity guidelines select the battery system that best fits your application and install the battery in your heli. Connect the battery to the receiver s EC3 connector. Spektrum batteries are pre-wired with an EC3 connector and plug directly in. If using another brand of battery it will be necessary to solder EC3 connectors to the battery leads. Using double-sided foam tape and tie wrap, mount a minimum of 1 and up to 2 remote receivers in your aircraft and plug them into the receiver ports. NOTE: It s necessary that one receiver be plugged into port B or R in order to operate. The receiver should be mounted at least 2 away from the main receiver with the antennas perpendicular. If using the RevLimit Limiter (AR7110R only) mount the rpm sensor and bracket to the backplate under two backplate screws of your engine as shown. Important: Normally, the pickup is mounted touching the backplate of the engine. If your system is not limiting RPM in flight, re-position the sensor.5 to 1mm away from the back plate. This can be easily accomplished by loosening the 2-56 button head screw on the sensor mount, re-adjusting the position, and then tightening. This should resolve the issue. Threadlock must be used on the screws. The rpm sensor bracket is adjustable for 50-size or 90-size engines by extending or retracting the rpm sensor and fastening the screw in place. 10

11 EN Bracket adjusted for 90-size engine Bracket adjusted for 50-size engine Plug the servo leads and rpm sensor into the appropriate ports in the receiver. You are now ready to bind the system. Note: In order for the system to operate, one remote receiver must be plugged into receiver port B or R. Connections The throttle and gear channels have two outputs. Output 1 is unregulated and the pack voltage is provided at this port. Throttle and Gear outputs 2 are regulated to 5.2 volts when a throttle servo and gyro are used that are not compatible with high voltage. Most gyros require less than 6 volts. Binding Telemetry with PowerSafe Receivers Spektrum PowerSafe receivers like the AR9110, AR12110 and the AR7110 require a special binding procedure when using telemetry modules. 1. Insert a bind plug in the bind port in the receiver. 2. Insert the telemetry modules Data port lead into any un-used channel in the receiver. (If all channels are being used remove any servo lead from the receiver to allow an open servo port to be accessed). 11

12 EN 3. Power the receiver through the EC3 connector. Note all of the receivers (internal and remote) should be flashing indicating they are in bind mode. 4. Using a second battery, insert the battery plug into any un-used channel in the receiver while pressing and holding the bind button on the side of the telemetry module. This will place the telemetry module in bind mode. 5. Make sure that the LEDs are flashing on all receivers and on the telemetry module. Place the all channels (sticks and switches) on the transmitter in the desired failsafe position. Now bind the transmitter to the system. 6. Remove the second battery from the receiver, remove the bind plug and move the telemetry module connector to the bind port to allow flight log data to be displayed. NOTICE: Do not leave the secondary battery plugged in for more than a few minutes as damage to the battery can occur. Optional Charge ON/OFF Adaptor Lead Included with the system is an optional charge, ON/OFF adaptor lead. Some heli pilots may prefer to use this adaptor lead instead of the included Soft Switch. When plugged into the receiver s switch port this adaptor lead allows the following: The battery can be charged through the adaptor lead. The system can be turned off by inserting the bind plug. Removing the bind plug turns the system on. Battery voltage can be monitored through the adaptor lead using a Flight Log or voltmeter. If the voltmeter is plugged directly into the male-male extension, the system is active and voltage under load (system operational) is displayed. If plugged into the charging lead, the at-rest battery voltage is displayed. Install the adaptor lead as shown: 12

13 EN Failsafe Functions The AR7110/AR7110R PowerSafe features two types of failsafe: SmartSafe and Preset Failsafe. SmartSafe Failsafe This type of failsafe is recommended for most types of giant-scale aircraft. Here s how SmartSafe works: Receiver Power Only When the receiver only is turned on (no transmitter signal is present), all servos except for the throttle are driven to their preset failsafe positions, normally all control surfaces at neutral and the landing gear down. These failsafe positions are stored in the receiver during binding. At this time the throttle channel has no output, to avoid operating or arming an electronic speed control (if used). In glow- -powered models, the throttle servo receives no input so it remains in its current position. Some analog servos will coast (move when powered up) slightly even though there is no signal present. This is normal. The receivers remain in standby mode with the blue battery LEDs lit. When the transmitter is turned on, the receiver locates the signal (GUID), connects and normal control resumes. When connected, the amber LEDs on all attached remote receivers will be on. After Connection When the transmitter and receiver are turned on and after the receiver connects to the transmitter and normal control of all channels occurs, if loss of signal occurs, SmartSafe drives the throttle servo to its preset failsafe position (low throttle) that was set during binding. All other channels hold their last position. When the signal is regained, the system immediately regains control. SmartSafe: Prevents unintentional electric motor response on start-up. Establishes low-throttle failsafe and maintains last-commanded control surface position if the RF signal is lost. Note: Failsafe positions are stored via the stick and switch positions on the transmitter during binding. Preset Failsafe Preset Failsafe is ideal for sailplanes and is preferred by some modelers for their glow and gas powered aircraft. Here s how Preset Failsafe works. Receiver Power Only When the receiver only is turned on (no transmitter signal is present), all servos except for the throttle are driven to their preset failsafe positions, normally all control surfaces at neutral and the landing gear down. These failsafe positions are stored in the receiver during binding. At this time the throttle channel has no output, to avoid operating or arming an electronic speed control (if used). In glow-powered models, the throttle servo has no input so it remains in its current position. The receiver remains in standby mode with the blue battery LEDs lit. When the transmitter is turned on, the receiver locates the signal (GUID), connects and normal control resumes. When connected, the amber LEDs on all attached remote receivers will be on. 13

14 EN After Connection When the transmitter and receiver are turned on and after the receiver connects to the transmitter and normal control of all channels occurs, if loss of signal occurs Preset Failsafe drives all servos to their preset failsafe positions. For sailplanes it s recommended that the spoilers/flaps deploy to dethermalize the aircraft, preventing a flyaway. Some modelers prefer to use this failsafe system to program a slight turn and low throttle to prevent their aircraft from flying away. When the signal is regained, the system immediately (less than 4 ms) regains control. Preset Failsafe: Prevents unintentional electric motor response on start-up. Drives all servos, except for the throttle to their preset failsafe positions, if the receiver only is powered and no signal is present. Establishes preset failsafe servo positions for all channels if the signal is lost. Programming SmartSafe During the binding process, the bind plug is left in throughout the process and is removed only after the receiver connects to the transmitter. After the connection is made, confirmed by operating the servos, the bind plug can be removed. The receiver is now programmed for SmartSafe. Programming Preset Failsafe During the binding process the bind plug is inserted in the bind port, then the receiver is powered up. The LEDs in each receiver should blink, indicating that the receiver is in bind mode. Now before binding the receiver to the transmitter and with the receiver in bind mode, remove the bind plug. The LEDs will continue to blink. With the control sticks and switches in the desired failsafe positions, bind the transmitter to the receiver by putting the transmitter into bind mode. The system should connect in less than 15 seconds. The receiver is now programmed for preset failsafe. Failsafe positions are stored via the stick and switch positions on the transmitter during binding. Range Testing 1. With the model resting on the ground, stand 30 paces (approx. 90 feet/28 meters) away from the model. 2. Face the model with the transmitter in your normal flying position and put your transmitter into range test mode. This causes reduced power output from the transmitter. 3. You should have total control of the model in range test mode at 30 paces (90 feet/28 meters). 4. If control issues exist, call Horizon Product Support for further assistance. 30 paces (90 feet/28 meters) Press and hold the bind button 14

15 EN Advanced Range Testing Using a Flight Log The Standard Range Testing procedure is recommended for most sport aircraft. For sophisticated aircraft that contain significant amounts of conductive materials (e.g. turbine powered jets, some types of scale aircraft, aircraft with carbon fuselages, etc.), the following advanced range check will confirm that all remote receivers are operating optimally and that the installation (position of the receivers) is optimized for the specific aircraft. This Advanced Range Check allows the RF performance of each remote receiver to be evaluated and to optimize the locations of each individual remote receiver. Advanced Range Testing 1. Plug a Flight Log into the data port in the AR7110/AR7110R and turn on the system (Tx and Rx). 2. Advance the Flight Log until frame losses are displayed by pressing the button on the Flight Log. 3. Have a helper hold your aircraft while observing the Flight Log data. 4. Standing 30 paces away from the model, face the model with the transmitter in your normal flying position and put your transmitter into range test mode. This causes reduced power output from the transmitter. 5. Have your helper position the model in various orientations (nose up, nose down, nose toward the Tx, nose away from the Tx, etc.) while your helper watches the Flight Log noting any correlation between the aircraft s orientation and frame losses. Do this for 1 minute. The timer on the transmitter can be used here. For giant-scale aircraft, it s recommended that the airplane be tipped up on its nose and rotated 360 degrees for one minute then the data recorded. Next place the airplane on its wheels and do a second test, rotating the aircraft in all directions for one minute. 6. After one minute, a successful range check will have less than ten recorded frame losses. Scrolling the Flight Log through the antenna fades (A, B, L, R) allows you to evaluate the performance of each receiver. Antenna fades should be relatively uniform. If a specific antenna is experiencing a high degree of fades then that antenna should be moved to a different location. 7. A successful advanced test will yield the following: H - 0 holds F - less than 10 frame losses A, B, R, L - Frame losses will typically be less than 100. It s important to compare the relative frame losses. If a particular receiver has a significantly higher frame loss value (2 to 3X) then the test should be redone. If the same results occur, move the offending receiver to a different location. 15

16 EN Flight Log The Spektrum Flight Log (SPM9540) is compatible with the AR7110/AR7110R PowerSafe. The Flight Log displays overall RF link performance as well as the individual internal and external receiver link data. Additionally it displays receiver voltage. Using the Flight Log After a flight and before turning off the receiver or transmitter, plug the Flight Log into the Data port on the PowerSafe. The screen will automatically display voltage e.g. 6v2= 6.2 volts. When the voltage reaches 4.8 volts or less, the screen will flash indicating low voltage. Press the button to display the following information: A - Antenna fades on antenna A B - Antenna fades on antenna B L - Antenna fades on the left antenna R - Antenna fades on the right antenna F - Frame loss H - Holds Antenna fades represents the loss of a bit of information on that specific antenna. Typically it s normal to have as many as 50 to 100 antenna fades during a flight. If any single antenna experiences over 500 fades in a single flight, the antenna should be repositioned in the aircraft to optimize the RF link. Frame loss represents simultaneous antenna fades on all attached receivers. If the RF link is performing optimally, frame losses per flight should be less than 20. The antenna fades that caused the frame loss are recorded and will be added to the total antenna fades. A Hold occurs when 45 consecutive frame losses occur. This takes about one second. If a hold occurs during a flight, it s important to reevaluate the system, moving the antennas to different locations and/or checking to be sure the transmitter and receivers are all working correctly. The frame losses that led to the hold are not added to the total frame losses. A servo extension can be used to allow the Flight Log to more conveniently be plugged in without having to remove the aircraft s hatch or canopy. On some models, the Flight Log can be plugged in, attached and left on the model using double-sided tape. This is common with helicopters, mounting the Flight Log conveniently to the side frame. 16

17 EN RevLimit Instructions (AR7110R only) The Spektrum AR7110R features an integrated RevLimit limiter. The RevLimit functions as a digital rpm limiter preventing the main rotor from over-speeding. When the rotor speed is at or below the programmed rpm, throttle position is controlled via the radio (i.e. throttle curves). The RevLimit only engages when the rotor rpm exceeds the programmed rpm reducing the throttle position preventing over-speed. The RevLimit limiter is designed to limit engine speed between 9,500 and 20,500 rpm. Engine rpm = Rotor rpm * Main gear ratio. Servo Requirements All common three-wire servos (analog and digital) are compatible and can be used for the throttle servo. Note that two throttle channel outputs are available: unregulated and regulated. The unregulated throttle operates at the battery voltage. The regulated throttle is regulated to 5.2 volts and is to be used when a high-voltage compatible servo is not being used for throttle control. Connections The RevLimit is totally integrated and the target rpm is adjusted via the Gear channel (channel 5). The only external connection needed is to mount the backplate rpm sensor to the backplate of your engine using two backplate screws. Note that the rpm sensor mount has two positions: extended for.90-size engines and retracted for.50-size engines. When installed correctly, the rpm sensor should just contact the backplate. On some engines and specifically the YS.50 and.90, the sensors must be spaced.5 to 1mm from the backplate. No additional magnets or brackets are needed. The rpm sensor picks up the magnetic effect of the crankpin as it passes the rpm sensor. If your system is not limiting RPM in flight, re-position the sensor.5 to 1mm away from the backplate. This can be easily accomplished by loosening the 2-56 button head screw on the sensor mount, re-adjusting the position, and then tightening. This should resolve the issue. Install the servos in their appropriately labeled ports. The throttle and gear channels have two outputs. Output 1 is unregulated and the pack voltage is provided at this port. Throttle and Gear outputs 2 are regulated to 5.2 volts when a throttle servo and gyro are used that are not compatible with high voltage. Most gyros require less than 6 volts. 17

18 EN Modes of Operation The RevLimit target rpm is adjusted thru the Gear channel (channel 5) output. DX7 In system setup mode program AUX2 to GYRO and GEAR to AUX2, the RevLimit will be controlled and adjusted via the AUX2 switch, and all the target rpm s will be adjusted using the GEAR channel travel adjust. The Gyro Gain channel will plug into the AUX2 channel and the gyro screen will be used to adjust the gyro gain (see the DX7 manual for more detail on gyro gain settings). In the travel adjust screen two values can be selected that will correspond with the desired rpm. Note that two different rpms can be selected, or if one value is programmed to zero, the RevLimit will be turned off when the AUX2 switch is in that position. Important: When calibrating the system the AUX2 channel must remain at 100% in both directions. 18

19 EN JR X GHz In System mode under device, activate the limiter program by selecting GOV under the Gear channel. The RevLimit will then be controlled and adjusted via the Limiter screen located in function mode. A target rpm is available for each flight mode. 0% turns off the limiter, while the larger the value the higher the target rpm. The Gyro Gain channel will plug into the Gear channel and the gyro screen will be used to adjust the gyro gain. (See the X9303 manual for more detail on Gyro Gain settings.) JR 12X 2.4GHz In System mode in code 17 Device Select, Assign the GOV to the gear channel. This will activate the governor programming code 45 in the function mode. The RevLimit will then be controlled and adjusted via the Governor screen code 45 located in function mode. A target rpm is available for each flight mode. 0% turns off the limiter, while the larger the value the higher the target rpm. 19

20 EN Calibration Important: When calibrating the system, the limiter percentages must be adjusted to 100% normal and -100% in ST1. During calibration the RevLimit stores the output limits of the Gear channel. It s necessary to adjust the Gear channel output to 100% in both directions during calibration. 1. Adjust the throttle operation so that the servo travel is near 100% in both directions at full throttle and at full idle. This may require lengthening or shortening the servo horn. 2. Make sure that the Gear channel is traveling 100% in both directions when the switch that controls the limiter is flipped (flight mode on the X GHz or Aux 2 on the DX7). The servo monitor is helpful here. 3. Set the throttle trim to the low (off) position. 4. With the throttle stick at low throttle, turn on the transmitter then turn on the receiver; within three seconds toggle the switch that will control the limiter. The ACT LED on the receiver will flash green indicating that the calibration mode is successfully entered. 5. Raise and lower the throttle stick throughout its full range. The throttle endpoint will be stored. 6. Exit the calibration mode by toggling the controlling switch twice. The ACT LED will stop flashing, indicating a successful calibration was achieved. 7. To verify correct calibration, lower the throttle stick below the 25% position and the ACT LED should turn off. Above 25% the ACT LED (green) should be on. Note: Calibration only needs to be performed when first setting up the RevLimit, or when changing throttle servo throws, or if the unit is installed in another helicopter. To Verify the RPM Sensor is Functioning With the system calibrated and turned on, rotate the engine over by hand and note the SENS LED on the receiver. When the crankpin passes the rpm sensor, the SENS LED will light red indicating the rpm sensor is working properly. 20

21 EN Setting a Target RPM The Gear channel s output sets the target rpm. See the diagram below. Note that the limiter is turned off from 0% to 5% and the target rpm is increased as the travel adjust/limiter setting is increased. Also note that the rpm increases above and below 5%. Using the servo monitor is a helpful way of verifying adjustment. Adjust the gear channel s travel adjust (DX7) or the limiter program to select the desired target rpm s. Fig: Auxiliary Channel ATV to Target Speed. Example: Engine RPM/Travel Adjust Adjusting Throttle Curves During the initial flights, a slightly elevated throttle curve that will give a headspeed of approximately 50 rpm above the target rpm is recommended. After operation is verified, some pilots use a 100% throttle curve in stunt mode and allow the RevLimit to fully regulate the engine rpm. Remember that flipping into normal mode and low throttle will deactivate the limiter should an issue occur. How the Limiter Works The RevLimit waits for the engine to reach the target rpm set by the Gear channel output. When the target rpm is exceeded, the limiter will smoothly take over the throttle channel regulating the engine directly. If the rpm drops below the target speed then normal control will be transferred to the throttle channel. The RevLimit will only limit the throttle if all of the following conditions have been met: 1. The rpm sensor, throttle and gear channel are adjusted and operating correctly. 2. The RevLimit has been calibrated. 3. The throttle is above 25%. 4. The gear channel output is greater than 5%. 5. The target rpm has been reached. 21

22 EN The RevLimit will pass control back to the throttle channel (controlled by the throttle curves) if any of the following occurs: 1. The throttle stick (output) is below 25%. 2. The Gear channel output is less than 5% (travel adjust or limiter setting). 3. The rpm sensor fails. QuickConnect with Brownout Detection The remote receivers now included with the AR7110/AR7110R feature QuickConnect with Brownout Detection (Brownout Detection not available with DSMX). Should a power interruption occur (brownout), the system will reconnect immediately when power is restored and the LEDs on each connected receiver will flash indicating a brownout (power interruption) has occurred (DSM2 only). Brownouts can be caused by an inadequate power supply (weak battery or regulator), a loose connector, a bad switch, an inadequate BEC when using an electronic speed controller, etc. Brownouts occur when the receiver voltage drops below 3.2 volts thus interrupting control as the servos and receiver require a minimum of 3.2 volts to operate. How Brownout Detection Works When the receiver voltage drops below 3.2 volts the system drops out (ceases to operate). When power is restored, the receivers will immediately attempt to reconnect to the last two frequencies they were connected to. If the two frequencies are present (the transmitter was left on) the system reconnects, typically in about 4ms. The receivers will then blink indicating a brownout has occurred (DSM2 only). If at any time the receiver is turned off then back on and the transmitter is not turned off, the receivers will blink as a power interruption was induced by turning off the power to the receiver (DSM2 only). In fact this simple test (turning the receiver off then on) will allow you to determine if your system s brownout detection is functioning (DSM2 only). NOTICE: If a brownout occurs in-flight it is vital that the cause of the brownout be determined and corrected. QuickConnect and Brownout Detection are designed to allow you to safely fly through most short duration power interruptions. However, the root cause of these interruptions must be corrected before the next flight to prevent catastrophic safety issues. 22

23 2.4GHz Troubleshooting Guide EN Problem Possible Cause Solution Aircraft will not throttle up but all other controls seem to function LED on aircraft remains flashing and cannot be controlled by transmitter Controls appear to be reversed after binding to a different transmitter Aircraft does not function after connecting flight battery and aircraft smells burnt User did not lower throttle trim and throttle stick prior to initializing the aircraft Throttle channel is reversed. Futaba transmitters (equipped with Spektrum modules) may require you to reverse the throttle channel User did not wait at least 5 seconds after powering the transmitter prior to connecting the flight battery to the aircraft User bound the aircraft to a different transmitter Transmitter was too close to aircraft during the initialization process User did not initially set up transmitter prior to binding to the aircraft User may have accidentally plugged the flight battery in with the wrong polarity Lower throttle stick and throttle trim to their lowest settings Reverse throttle channel on specific transmitter if applicable Unplug, then reconnect flight battery Rebind aircraft to your desired compatible transmitter Move transmitter (powered on) a few feet from the aircraft prior to reconnecting the flight battery See the Advanced Programming section of this manual Replace AR7110/AR7110R board and ensure the RED polarity marks are facing the same direction when connecting the flight battery to the AR7110/AR7110R board 23

24 EN Problem Possible Cause Solution The system will not connect Receiver quits responding during operation Receiver loses its bind Receiver blinking at landing Your transmitter and receiver are too close together. They should be 8 to 12 feet apart You are around metal objects Model selected is not the model bound to Your transmitter was accidentally put into bind mode and is not bound to your receiver anymore Inadequate battery voltage Loose or damaged wires or connectors between battery and receiver Transmitter stand or tray could be depressing the bind button Bind button pressed before transmitter turned on System turned on and connected then receiver turned off without turning off transmitter Move transmitter 8 to 12 feet from receiver Move to an area with less metal Check model selected and ensure you are bound to that model Rebind your transmitter and receiver Charge batteries. Spektrum receivers require at least 3.5V to operate. An inadequate power supply can allow voltage to momentarily drop below 3.5V and cause the receiver to brown out and reconnect Check the wires and connection between battery and receiver. Repair or replace wires and/or connectors If stand is depressing bind button, remove from stand and rebind Rebind your system following binding instructions Turn off transmitter when receiver is turned off 24

25 1-Year Limited Warranty EN What this Warranty Covers Horizon Hobby, Inc., (Horizon) warrants to the original purchaser that the product purchased (the Product ) will be free from defects in materials and workmanship for a period of 1 years from the date of purchase. What is Not Covered This warranty is not transferable and does not cover (i) cosmetic damage, (ii) damage due to acts of God, accident, misuse, abuse, negligence, commercial use, or due to improper use, installation, operation or maintenance, (iii) modification of or to any part of the Product, (iv) attempted service by anyone other than a Horizon Hobby authorized service center, or (v) Products not purchased from an authorized Horizon dealer. OTHER THAN THE EXPRESS WARRANTY ABOVE, HORIZON MAKES NO OTHER WARRANTY OR REPRESENTATION, AND HEREBY DISCLAIMS ANY AND ALL IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE PURCHASER ACKNOWLEDGES THAT THEY ALONE HAVE DETERMINED THAT THE PRODUCT WILL SUITABLY MEET THE REQUIREMENTS OF THE PURCHASER S INTENDED USE. Purchaser s Remedy Horizon s sole obligation and purchaser s sole and exclusive remedy shall be that Horizon will, at its option, either (i) service, or (ii) replace, any Product determined by Horizon to be defective. Horizon reserves the right to inspect any and all Product(s) involved in a warranty claim. Service or replacement decisions are at the sole discretion of Horizon. Proof of purchase is required for all warranty claims. SERVICE OR REPLACEMENT AS PROVIDED UNDER THIS WARRANTY IS THE PURCHASER S SOLE AND EXCLUSIVE REMEDY. Limitation of Liability HORIZON SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY, REGARDLESS OF WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, TORT, NEGLIGENCE, STRICT LIABILITY OR ANY OTHER THEORY OF LIABILITY, EVEN IF HORIZON HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Further, in no event shall the liability of Horizon exceed the individual price of the Product on which liability is asserted. As Horizon has no control over use, setup, final assembly, modification or misuse, no liability shall be assumed nor accepted for any resulting damage or injury. By the act of use, setup or assembly, the user accepts all resulting liability. If you as the purchaser or user are not prepared to accept the liability associated with the use of the Product, purchaser is advised to return the Product immediately in new and unused condition to the place of purchase. Law These terms are governed by Illinois law (without regard to conflict of law principals). This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. Horizon reserves the right to change or modify this warranty at any time without notice. 25

26 EN WARRANTY SERVICES Questions, Assistance, and Services Your local hobby store and/or place of purchase cannot provide warranty support or service. Once assembly, setup or use of the Product has been started, you must contact your local distributor or Horizon directly. This will enable Horizon to better answer your questions and service you in the event that you may need any assistance. For questions or assistance, please direct your to horizonhobby.com, or call toll free to speak to a Product Support representative. You may also find information on our website at com. Inspection or Services If this Product needs to be inspected or serviced, please use the Horizon Online Service Request submission process found on our website or call Horizon to obtain a Return Merchandise Authorization (RMA) number. Pack the Product securely using a shipping carton. Please note that original boxes may be included, but are not designed to withstand the rigors of shipping without additional protection. Ship via a carrier that provides tracking and insurance for lost or damaged parcels, as Horizon is not responsible for merchandise until it arrives and is accepted at our facility. An Online Service Request is available at under the Support tab. If you do not have internet access, please contact Horizon Product Support to obtain a RMA number along with instructions for submitting your product for service. When calling Horizon, you will be asked to provide your complete name, street address, address and phone number where you can be reached during business hours. When sending product into Horizon, please include your RMA number, a list of the included items, and a brief summary of the problem. A copy of your original sales receipt must be included for warranty consideration. Be sure your name, address, and RMA number are clearly written on the outside of the shipping carton. Notice: Do not ship LiPo batteries to Horizon. If you have any issue with a LiPo battery, please contact the appropriate Horizon Product Support office. Warranty Requirements For Warranty consideration, you must include your original sales receipt verifying the proof-of-purchase date. Provided warranty conditions have been met, your Product will be serviced or replaced free of charge. Service or replacement decisions are at the sole discretion of Horizon. Non-Warranty Service Should your service not be covered by warranty service will be completed and payment will be required without notification or estimate of the expense unless the expense exceeds 50% of the retail purchase cost. By submitting the item for service you are agreeing to payment of the service without notification. Service estimates are available upon request. You must include this request with your item submitted for service. Non-warranty service estimates will be billed a minimum of ½ hour of labor. In addition you will be billed for return freight. Horizon accepts money orders and cashiers checks, as well as Visa, MasterCard, American Express, and Discover cards. By submitting any item to Horizon for service, you are agreeing to Horizon s Terms and Conditions found on our website 26

27 Warranty and Service Contact Information Country of Purchase United States of America United Kingdom Germany France China Horizon Hobby Horizon Service Center (Electronics and engines) Horizon Product Support (All other products) Horizon Hobby Limited Horizon Technischer Service Horizon Hobby SAS Horizon Hobby China Address 4105 Fieldstone Rd Champaign, Illinois USA 4105 Fieldstone Rd Champaign, Illinois USA Units 1-4 Ployters Rd Staple Tye Harlow, Essex CM18 7NS United Kingdom Christian-Junge- Straße Elmshorn Germany 14 Rue Gustave Eiffel Zone d Activité du Réveil Matin Montgeron Room 506, No. 97 Changshou Rd. Shanghai, China Customer Service Information Country of Horizon Hobby Address Purchase United States of America Sales 4105 Fieldstone Rd Champaign, Illinois USA Phone Number/ Address Online Repair Request: visit service productsupport@ horizonhobby.com +44 (0) sales@horizonhobby.co.uk +49 (0) service@horizonhobby.de +33 (0) infofrance@horizonhobby. com +86 (021) info@horizonhobby.com.cn Phone Number/ Address (800) sales@horizonhobby.com EN United Kingdom Germany Horizon Hobby Limited Horizon Hobby GmbH Units 1-4 Ployters Rd Staple Tye Harlow, Essex CM18 7NS United Kingdom Christian-Junge- Straße Elmshorn Germany +44 (0) sales@horizonhobby.co.uk service@horizonhobby.de 27

28 EN Country of Purchase France China Horizon Hobby Horizon Hobby SAS Horizon Hobby China Address 14 Rue Gustave Eiffel Zone d Activité du Réveil Matin Montgeron Room 506, No. 97 Changshou Rd. Shanghai, China Phone Number/ Address +33 (0) infofrance@horizonhobby. com +86 (021) info@horizonhobby. com.cn Compliance Information for the European Union Declaration of Conformity (in accordance with ISO/IEC ) No. HH U3 Product(s): AR7110/AR7110R Rx Item Number(s): SPMAR7110/SPMAR7110R Equipment class: 1 The objects of declaration described above are in conformity with the requirements of the specifications listed below, following the provisions of the European R&TTE directive 1999/5/EC: EN V1.7.1: 2006 EN V1.3.2: 2008 Signed for and on behalf of: Horizon Hobby, Inc. Champaign, IL USA Dec. 8, 2009 Steven A. Hall Vice President International Operations and Risk Management Horizon Hobby, Inc. Instructions for disposal of WEEE by users in the European Union This product must not be disposed of with other waste. Instead, it is the user s responsibility to dispose of their waste equipment by handing it over to a designated collections point for the recycling of waste electrical and electronic equipment. The separate collection and recycling of your waste equipment at the time of disposal will help to conserve natural resources and ensure that it is recycled in a manner that protects human health and the environment. For more information about where you can drop off your waste equipment for recycling, please contact your local city office, your household waste disposal service or where you purchased the product. 28